Local (Pump Side) Operation; Remote (Distant) Operation - EBARA A70W Instruction Manual

5.2.1

Local (Pump side) Operation

Start
Press controller START button.
MP (Main Pump) starts and MP RUN LED lights.
BP (Booster Pump) starts automatically, and BP RUN LED lights.
While pump is running, the default LCD display is motor current(s).
For other indications of pump condition, refer to Table 5.2.
[NOTE] The pump will not start while an ALARM/TRIP signal remains active.
Pressing START button will bring STARTFAIL to the display.
Stop
Press controller STOP button.
Both MP and BP stop and both RUN LED go out.
Motor current is indicated as "00.0 A."

5.2.2 Remote (Distant) Operation

Start
[NOTE] External signal type must comply with dipswitch settings.
Input external MP START signal from control connector.
MP starts.
In BP automatic operation mode, BP starts and stops automatically based on the
pump inlet vacuum.
When operating BP by remote signal, input external BP START signal from control
connector only when inlet pressure is less than or equal to 4000 Pa.
Stop
[Alternating signal mode]
Turn MP START signal off, both MP and BP stop.
[Momentary (Pulse) signal mode]
Input external MP STOP signal, both MP and BP stop.
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